# Al-3Q-fil36.in # spin-5/2 anti echo and echo amplitude optimization # versus the first-pulse duration # in three-pulse amplitude-modulated z-filter 3QMAS, # the second-pulse duration p2 = 4 micro seconds # the third-pulse duration p3 = 2 micro seconds spinsys { channels 27Al nuclei 27Al quadrupole 1 2 3e6 0 0 0 0 } par { spin_rate 5000 variable tsw 0.25 sw 1.0e6/tsw np 17 crystal_file rep10 gamma_angles 10 proton_frequency 800e6 start_operator 36*I1z detect_operator I1c verbose 1101 variable rf 90000 variable rf3 9300 variable p2 4 variable p3 2 } proc pulseq {} { global par maxdt $par(tsw) matrix set 1 coherence {-3 3} matrix set 2 coherence {0} acq -y for {set i 1} {$i < $par(np)} {incr i} { pulse $par(tsw) $par(rf) x store 2 filter 1 pulse $par(p2) $par(rf) x filter 2 pulse $par(p3) $par(rf3) x acq -y reset prop 2 } } proc main {} { global par fsave [fsimpson] $par(name).fid puts "Larmor frequency (Hz) of 27Al: " puts [resfreq 27Al $par(proton_frequency)] } #SIMP #NP=17 #SW=4000000 #TYPE=FID #DATA #0 0 #2.66156837e-05 -1.10751898e-08 #0.000477154055 1.0233252e-06 #0.000599946781 1.58260724e-05 #-0.00837103312 8.10152123e-05 #-0.046851471 0.000234268504 #-0.131317997 0.000468469574 #-0.252546703 0.000737852512 #-0.383924609 0.00103535661 #-0.504908679 0.00142240045 #-0.607945843 0.00194565156 #-0.698207823 0.00256676962 #-0.784886778 0.00319105501 #-0.863329644 0.00372706593 #-0.915288736 0.00411457704 #-0.925883632 0.00431556715 #-0.892385714 0.00429709225 #END